Metadata

Coordinates

38.11465, -121.6468833 (decimal degrees)

Elevation

3.35 m below sea level

Maps


Deployment Dates

Deployed: 2016-08-10
Removed: N/A

Sensors Deployed

  • 1 NRLITE2 (Kipp & Zonen) net radiometer mounted at 1.7 m above ground level
  • 2 FW3 (Campbell Scientific) fine-wire thermocouples mounted at 1.5 m above ground level

Notes

  • Surface renewal sensible heat flux measurements were corrected with calibration coefficients developed between surface renewal and eddy covariance measurements at Station D13 (Roberts Island Alfalfa).

  • Thermocouples at this station were wired incorrectly until 2016-09-07 17:00
  • At this point Tc was rewired correctly, but Tn was left miswired (to aid in developing an empirical correction)
  • 2016-12-02 15:30 the second thermocouple (Tn) was rewired correctly.

  • The data shown have the empirical correction applied to the sensible heat fluxes when the thermocouples were miswired (sign change in heat flux)

Photographs



Daily Evapotranspiration and Energy Balance Components

Summed daily net radiation (Rn), surface renewal derived sensible heat flux (H SR), and actual evapotranspiration (ETa SR) derived from the energy balance residual. Ground heat flux (G) was assumed negligible at the daily scale.

Columns plotted: Rn_Avg_gf_mm_Dqc, SR_aH_gf_mm_Dqc, ET_SR_gf_Dqc, ETo_mm


Daily ETa / ETo

Daily calculated ETa divided by daily ETo obtained from Spatial CIMIS.

Columns plotted: Ka_SR


Half-hourly Energy Balance Components

Average net radiation (Rn), and calibrated surface renewal derived sensible heat flux from each thermocouple (H Tc and H Tn), and the average of the sensible heat fluxes measured by each thermocouple (H SR).

Columns plotted: Rn_Avg_qc, SR_aH_qc, Tc_aH_qc, Tn_aH_qc


Half-hourly Average Temperature

Half-hourly Average temperature measured by each thermocouple (Tc and Tn) and by the internal datalogger reference.

Note that at this station thermocouples were wired incorrectly until the afternoon of 2016-09-07. At this point Tc was fixed, but Tn was left miswired to develop a correction to the sensible heat flux. Thermocouple temperatures before 2016-09-07 are not accurate, and only Tc is accurate afterwards (Tn was fixed 2016-12-02). Since surface renewal uses changes in temperature and not the temperatures themselves, accurate sensible heat fluxes were obtained from miswired thermocouples by applying a sign change.

Columns plotted: Tpanel_qc, Tc0_Avg_qc, Tn0_Avg_qc


Half-hourly Average Battery Voltage

Half-hourly datalogger battery voltage

Columns plotted: BattVolt_Avg_qc